The sufficiency of Scripture means that Scripture contained all the words of God He intended His people to have at each stage of redemptive history, and that it now contains everything we need God to tell us for salvation, for trusting Him perfectly, and for obeying Him perfectly.

All sin is ultimately irrational. Though people persuade themselves that they have good reasons for sinning, when examined in the cold light of truth on the last day, it will be seen in every case that sin ultimately just does not make sense." Wayne g